That is really, really great for you. But what about your friends? Are some of them still using IE? If so, you should direct them to this page as soon as you possibly can. Downloading and installing Firefox might just save them from a virus, worm, piece of nasty spyware or worse. They will thank you for giving them such a valuable pointer.
This is the button they will see, which makes it as easy as possible to get Firefox, and get it quick:
Also, if you haven't already, you should Create an account and then add your own reason about why you think using Firefox is the only way to browse the web.
Now theres no reason not to install firefox. IE Tab lets you view your favorite pages that dont display the same in firefox as if they were in IE! You can find it here http://ietab.mozdev.org/